Audio to MIDI
Turn a clear, single-melody recording into detected notes you can inspect and edit. Download MIDI for free without signing in.
Bring a sound into view.
Start with a single voice or instrument for the clearest notes.
MP3 or WAV · Up to 20 MB · First 30 seconds · Processed on your device
Download PNG and MIDI without signing in. Files are generated on your device.
Single-melody pitch detection. Chords and full mixes may need substantial editing.
How do I convert audio to MIDI?
Choose a clear MP3 or WAV containing one instrument or voice playing one note at a time. DrawMusic analyzes the first 30 seconds of a file up to 20 MB, estimates the notes, and shows them on a spectrogram. Listen to the detected melody and correct it before export. Audio to MIDI inspection, editing and MIDI downloads are free, with no sign-in needed.
Can I turn humming into MIDI notes?
You can try a recorded, unaccompanied humming or sung melody saved as MP3 or WAV. Record a short phrase with clear notes and little background noise or reverb. The detector estimates one pitch at a time, so results depend on the recording. Check pitches and note lengths by listening; this page selects a file rather than recording your microphone.
How do I fix incorrect notes after audio to MIDI conversion?
Select and drag a detected note to correct its pitch or start time. Drag the right edge to adjust its length. Use Add note or Erase note to fix missing or extra events, and Undo edit to restore the previous edit. Play the notes again and compare them with your recording.
Does MIDI keep the original voice or instrument sound?
No. MIDI stores note instructions rather than the recorded audio. Choose an instrument in a MIDI-capable music app to play the notes. Keep the original WAV or MP3 if you need the exact voice, instrument tone, or recording. If you need the lyrics or spoken words rather than the notes, a speech-to-text tool such as DropTranscribe turns the same MP3 or WAV into a text transcript.
FAQ
Can I convert piano chords or a full song to MIDI?
The current detector is intended for monophonic melodies: one pitch at a time. Chords, drums, overlapping voices, and dense mixes can produce missing or incorrect notes. It does not separate a band into instrument tracks.
Is the audio to MIDI converter completely free?
Audio analysis, note inspection, editing, playback, PNG downloads and MIDI downloads are free and need no account. In the drawing tools, Google sign-in is required for cloud saves and share links; the first saved work is free and annual membership allows 100 new saved works for $19.90/year.
Does audio to MIDI use cloud AI?
No. This version uses local pitch detection in your browser. Your recording stays on your device; it is not sent to a cloud transcription service.
Can I export sheet music or guitar tabs?
No. DrawMusic does not export sheet music or tablature. Its note export format is MIDI, available to download without signing in.